So what is GIS, what is BIM, is GIS BIM, is BIM GIS?
GIS has already been integrated into ERP systems but BIM has not been! It has been around longer and hence more entrenched.
GIS is a tree, BIM is a branch, data “IS” GIS, data holds it all together.
Building is not a noun, building is a verb.
GIS = “Get It Surveyed”
The generation in all areas of data where items are created in order to tell a story that invalidate the data by hacking the tool to generate story telling material.
Scales of data and filters on that data by the activity you wish to carry out. The possible data “cloud” where abstractions are generated on the fly from one central source of truth.
GIS is before design build and after design and build but rarely “during” design and build.
ESRI can not draw curves but segmented lines.